2261105 has 24 divisors (see below), whose sum is σ = 3447360. Its totient is φ = 1407840.

The previous prime is 2261099. The next prime is 2261111. The reversal of 2261105 is 5011622.

It is an interprime number because it is at equal distance from previous prime (2261099) and next prime (2261111).

It is not a de Polignac number, because 2261105 - 2⁶ = 2261041 is a prime.

It is a super-2 number, since 2×2261105² = 10225191642050, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2276 + ... + 3114.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

2^2261105 is an apocalyptic number.

It is an amenable number.

2261105 is a deficient number, since it is larger than the sum of its proper divisors (1186255).

2261105 is a wasteful number, since it uses less digits than its factorization.

2261105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2261105 is about 1503.6971104581. The cubic root of 2261105 is about 131.2522962561.

Adding to 2261105 its reverse (5011622), we get a palindrome (7272727).

It can be divided in two parts, 226 and 1105, that added together give a palindrome (1331).

The spelling of 2261105 in words is "two million, two hundred sixty-one thousand, one hundred five".